Is it worth rekindling an old friendship? (really long explanation)?

yeah, i wouldnt hang out with her either, its ok that you guys like different things and such, but it sounds like the reason you guys aren't really friends anymore is because she's just.. rude/mean/etc. i dont think you should tell her that right to her face or anything, but i would try to not talk to her without being mean or mentioning you dont want to be friends to avoid hurting her feelings. and just slowly drift further and further away. XD good luck